Head-motion for ore-concentrators.



' G. T. COOLEY. HEAD MOTION Foa om coNcENTRAToHs.. APPLICATION Fl/LEDNOV. SO, 1914,

Pat-med Apr. 16, 1918.

'gi u? '.30 253 9 g 27 74 7 9'/ '//l I j `will" T, l MIAMI @X3i/buzonesMJU/Hwa@ l, STATES PATENT OEE-Ica,D

GEORGE T. coOLEY, OE JOPLIN, MISSOURI, ASSIGNOR oE ONE-HALE To JAMESATHEI."

BRENT, OE SAN FRANCISCO, CALIFORNIA.

HEAD-MOTION FOR ORE-ONCENTRATORS Patenteanpnie, 191s'.

Applicationiled November 10, 19,14. Serial No. 871,306'.

To all whom t may concern.' l

Be it known that I, GEORGE THOMPSON COOLEY, a citi/zen of the UnitedStates, residing at Joplin, in the county f' Jasper and State ofMissouri, have invented certain new and useful Improvements inHead-Motions for Ore-Concentrators, of which the follow- 1s separatedand f bar, means for tween the rapid on the ing is a specification. f

y invention relates to an improvement,

in head motions for ore cjoncentrators, and the object is tov provideapparatus especially adaptedifor operating tables` on which materialcomposed -of the finest kind of grains treatment, it being desirable toemtively short, quick motion, andl especially, return stroke, while atthe same time having such a degree of sensitiveness and flexibility thatit will retain the very ll fine values upon the table, while .the gangueeliminated A therefrom,

thereby saving a very high. percentage of values which .heretoforecouldnot be saved required.

either by vanners or slime tables:

With these objects in consideration,. this invention consists of areciprocating drawpositively moving the latter 1n one direction, and arecoil forquckreJ turn, 1n connection with a table or tables.-

and yielding means forming a connection beL n table and the headmotion,`which relieves the suddenncss and severity of the stroke whichwould otherwise be imparted to the table. y, A l, ,f The inventionfurther consists in details which will be hereinafter more fullydescribed and set forth in` the claims.

In the accompanying drawings- Figure lis a plan -vlew with certainportions broken away, showing the head motion mounted on a framework andconnected tothe end of a table; ,and

Fig. 2 is a longitudinal vertical section through the same.

A, lrepresents a framework composedr ofl uprlghts and sills of anysuitable form.

Upon the top of this frame, a cast-iron base-n plate 1 is ,bolted as at2, 2. Pillow-blocks 3, 3, are erected at opposite sides 0f the baseplate1, and in this the rotary drive-shaft 4 is vjournaled, the latter beingheld in place by the usual cap-plates 5, 5,.held down by bolts 6, 6,upon the pillow-blocks.

- slidably mounted in 4theliase-plate 1, forms a 'screwed thereon 7 and8, one within the.

10 and 11 respectively and the part the required stroke -to the lever,and

the length ofl this stroke in the present designed machine is capable ofvariation from one inch to nothing by simply loosening the turning the{1y-wheel set-screws 9, 9,F and 15, which lis affixed to the shaft, andwhich carrieswithit the inner eccentric 7, and holding the outereccentric 8v until they are actually adjusted to theylength of strokeThe reciprocating frame or yoke 16 'conveniently encircles the togglemechanism, and is'reciprocated thereby. A tailfpin 17 a hole in the post18 on at the rear end, and the draw-bar 19 sliding through a hole in thepost 20 guides-and supports it at the forward end. The long links 10, 10of the toggle extend from trun-4 nions 21 at the rear-uof the yoke'orframe 'to trunnions 22 at the lower end of the level' 12, whereas ,theshorter links 11, 11, extend from-truimions 23, 23 on theA abutment 24to the trunnions 25 on the lever 12, so that with the rotation of theshaft 4, the lever 12 f is not onlyreciprocated endwise but also aI"regulating motion is imparted to it, due toA ythe location of thetrunnions22 an '25 in different horizontal planes and the difference inlength fnof the toggle-links 10 and 11. vThe bolt 19 is rigidlyconnected with the yoke vor frame 16 'by a nut 26, and the forwardfendof thisbolt is rigidly secured'to a bolster 27 by means ofnuts 28 'and'29 bolster, washers 30 and 31 being placed be# tween the nutsv and thebolster 'so that-'the bolster and screw are held A recoil compressionspringl 32- is sleeved rigidly together.

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guide and support on opposite sides of the upon the bolt 19 and is heldcompressed be- ',tween the washer 30 cup 33 on the cross-head 34. Thetension at the one end and the of this spring is nicely regulated bymeans of screws 35, 35, which turn in threaded holes in the sides of thepost 20. The heads of these bolts have round pins 36, 36, which turn inholes' in thecross-head to hold the cross-head in place.I By turningthese screws 35, 35 to the left, the tension of the spring 32 is ofcourse increased, and by p turning them to the right, the tenslon iscorrespondingly decreased.

1t is my intention to operate a battery of concentrator tables with myhead motion. While the number may vary,I have shown four only, indicatedby the numerals 37, 37. It is for this reason that 1 employ the bolster27.

Especial attention is directed to the manner in whichthese tables areconnected with the bolster. 1t is necessary, for the work this table isdesigned to accomplish, that it. should have unusual iexibility andsensi- 25 tiveness in the matter of imparting a stroke of the headmotion to th table, as otherwise values which could be saved willnecessarlly be lost, and this is a meritorious feature of my inventionand contributes largely to the 3o successful treatment ofithe very finematerial whigi constitutes a large percentage of the ore eing dressedupon my table. rlhis means of connection between head motion and tablecomprises bolts 38, 38, the springs as 39, 39 concealed partly in theholes 40 bored 4@ relatively small into the bolster, and the tail-nuts41, which are capable ofbeing turned to regulate the tension ofthesprings 39, 39, while the machine is in operation. By means of thesesprings 39, 39, the suddenness and severity of the return stroke uponthe table or tableswhich necessarily,` must be rapid-is relieved, andthe first shock or strain comes upon the springs 39, 39, which.

5o the medium of these springs is then imparted to the tables throughnuts 41, 41], and the bolts 38, 38. 1n this manner, the tables arerelieved of the shock of the Lacasse thus imparting an intermittent or.step by i step forward or' progressive movementl to the (material onthe table. i

1 claim l. In a head motion for concentrators, the' combination of abase-plate, a reciprocating frame or yoke', a rotary shaft, atoggle-joint actuated by the shaft comprising lever, said linksextending from points on thelever in different horizontal planes to theyoke or frame. and to a xed abutment.

2,-1n a head motion for concentrators, the combination of a base-plate,a reciprocating frame or yoke, a rotary shaft, a toggle-j oint actuatedby the shaft comprising links 'andlever,

tending from the lever at different points thereon to the frame or yokeand to axed abutment on the base-plate.

3. 1n a head motion for concentrators, the combination of a base-plate,la reciprocating frame or yoke, a rotary shaft, a toggle-joint actuatedby the shaft comprising links andlever, said links extending from pointson the lever in different horizontal planes to the yoke or frame and toa vfixed abutment, the toggle links extending from thev lever to the okeor frame being of greater length than t e links extending from the leverto A the abutment.

l 4. 1n ahead motion for concentrators, the combinatlon with a suitablebase-plate,I a

spring-actuated reciprocating 'frame or' yoke, means for movin the frameor yoke positively in one directlon while the spring moves it in theopposite direction, a bolster carried bythe frame or yoke, andcompressible means carried by thefbolster, said com.-` pressible meansconsisting of rods extending slidably through the bolster,'and adaptedto be connected with the concentrator, springs on the rods, and meansfor regulating the tension of the springs.

5. 1n a head motion for concentrators, the combination with a suitablebase-plate, a spring-actuated reciprocating frame or yoke, means formoving the frame or yoke rapid return motion, which otherwise wouldLpOStively in one direction while the spring be perfectly unyielding,but which through, 39, 39, is eased and softened and ysensitive to therequire-v ments of the work.

The drive-shaft 4 travels from five hundred to six hundred revolutionser minute. 'llhe parts are ordinarily adjusted to impart a quarter-inchstroke, as this keeps the line stuffV active and alive, without throwingit from the table. By the lever construction of the toggle, much lesspower is-required than otherwise to drive the tables, and as theforwardstroke is relatively slow* and then accelerated, the return stroke isrelatively swift, so that the table is jerked back from under the load,as it were, whereas the load is carried with it in its forward stroke,

bolster or yoke for connection with moves 1t in the opposite direction,a bolster carried by the frame, compressible means carried by thebolster, said compressiblerection, and. a spring for movin it in theopposite direction, a bolster carried-by the frame or yoke, tandlesstensionthan the'spring carried by the thing to be'reciprocated, saidcompressible compressible means of the n links and said links ofdifferent lengths and ex- L vparting a positive motion thereto in onedimeans consisting of rods extending slidably and'adapted to beconthrough the bolster, nected with the concentrator, springs on therods; and means for regulating the tension of the springs. A

7 In headl motions for concentrators, the combination with a suitablebase-plate, of a. reciprocating frame or yoke, a bolster, compressiblemeans carried by the bolster, said y compressible means consisting ofrods extending slidably through the bolsterand adapted to be connectedwith the concentrator, springs on the rods, and means for regulating thetension of the springs, means for forcing the frame or yoke in onedirection, 'and a springfor returningit in the other direction.

8. In a head motion for concentrators, the

combination with a base-plate, a reciprocating frame or yoke, means fordriving the latter positively in one direction, and a spring foractuating it in the opposite direction. a cross-head with which one endof the spring engages, a bolster with which the other end of the. springengages, and bolts screwed into a part of the base plate With theirheads rotatably connected with the cross-head. whereby, when theyareturnL-.j the tension of the spring is Varied and tables yielclablyeonnectedwith the bolster.

In testimony whereof I aiiix my signature in the presence of twowitnesses.

GEO. T. COOLEY. l-Vitnesses:

EMILY F. CAMP, VERNON E. HoDGEs.

